EP1957783A1 - Exhaust gas recirculation mixer for a turbo-charged internal combustion engine - Google Patents
Exhaust gas recirculation mixer for a turbo-charged internal combustion engineInfo
- Publication number
- EP1957783A1 EP1957783A1 EP05813493A EP05813493A EP1957783A1 EP 1957783 A1 EP1957783 A1 EP 1957783A1 EP 05813493 A EP05813493 A EP 05813493A EP 05813493 A EP05813493 A EP 05813493A EP 1957783 A1 EP1957783 A1 EP 1957783A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inlet port
- section
- insertion section
- branch pipe
- arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0097—Relays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/28—Connectivity information management, e.g. connectivity discovery or connectivity update for reactive routing
Definitions
- the present invention relates to an EGR mixer arrangement for mixing the gas into the intake air of a turbocharge ⁇ internal combustion engine, comprising an inlet port with connection for a branch pipe, which with an insertion section opens out into the inlet port.
- EGR Exhaust Gas Recirculation
- the quantity of EGR gas that can be transferred from the exhaust side to the intake side of a turbocharged internal combustion engine varies, among other things, as a function of the pressure prevailing on the intake side and on the exhaust side, and on the design configuration of the EGR mixer arrangement for mixing the gas into the intake air.
- This arrangement should therefore be designed for a minimum pressure fall both of the intake air and of the EGR gas .
- the arrangement should furthermore be capable of distributing the pulsed supply of EGR gas as uniformly as possible to _
- An object of the invention is therefore to provide a compact and efficient exhaust gas recirculation mixer arrangement .
- the arrangement comprises an inlet port with connection for a branch pipe, which with an insertion section opens out into the inlet port, and according to the invention is characterized in that the insertion section forms a diffuser vane with a surface which is positively double-bent in the direction of flow of the intake air and which extends in a curved shape in the flow direction of the inlet port.
- This design of the mixer arrangement achieves an efficient mixing of the EGR gas into the intake air over a short section of the port.
- Fig. 1 shows a schematic representation of an internal combustion engine with EGR cycle, in which the mixer arrangement according to the invention can be applied, — —
- Fig. 2 shows a schematic representation of the mixer arrangement according to the invention
- Figs . 3 and 4 are two side views of the insertion of the mixer arrangement, viewed from different angles.
- the internal combustion engine 10 represented schematically in Fig. 1 comprises an engine block 11 having six piston cylinders 12 with an inlet manifold 13 and an exhaust manifold 14. Exhaust gases are led via an exhaust pipe 15 to the turbine rotor 17 of a turbocharger unit 16.
- the turbine shaft 18 drives the compressor wheel 19 of the turbocharger unit, which via an intake line 20 compresses intake air and delivers this via an intercooler 21 to the inlet manifold 13.
- Fuel is fed to each cylinder 12 by way of injectors (not shown) .
- Exhaust gases that have passed through the turbocharger unit 16 are led into the atmosphere via the exhaust line 22. Exhaust gases are also returned to the intake side of the engine as so-called EGR gas, via a pipeline 24, for reduction of the engine nitrogen oxide emissions in accordance with the state of the art.
- This line comprises a valve 25, which serves as regulating valve for regulating the EGR flow.
- a cooler 26 for cooling the EGR gases.
- the pipeline 24 for EGR gas is connected to the intake line 20 by means of a mixer arrangement 27, which will be described in more detail below.
- the mixer arrangement is represented schematically in Fig. 2 and comprises an inlet port 28 for intake air which flows in the direction of the arrow 29.
- the mixer arrangement comprises a branch pipe 30 for connection to the EGR line 24.
- the branch pipe 30 has a circular cross section and with an insertion - -
- the insertion section 31 opens out into the inlet port 28.
- the insertion section forms a diffuser vane with positively double-bent surface, which extends in a curved shape in the flow direction of the inlet port.
- the insertion section is shown on a larger scale in Figs. 3 and 4 and is designed so that, in a section which substantially coincides both with the central axis of the inlet port and with the central axis of the branch pipe, it extends in a curved shaped from the part of the branch pipe 30 situated nearest the upstream end of the inlet port to a point between the central axis of the inlet port and the wall 28a of the inlet port. Viewed in cross section through the insertion section/diffuser vane 31, this curves towards the inside of the bend and is of a width which is less than the diameter of the branch pipe.
- the diffuser vane 31 may be formed, for example, by a pipe section having a smaller diameter than the branch pipe, which connects to the branch pipe 30 by way of a collar section 32.
- a first section 31a of the diffuser vane is straight and forms a transition to the curved section 31b.
- the radially inner half segment of the pipe section is cut away in such a way that the remaining part has a cross section with a circular segment having an angular width not exceeding approximately 180 degrees.
- the design of the insertion section 31 described above serves to minimize the pressure fall created by the insertion section in the inlet port 28. This is due to the fact that the insertion section has been made narrower than the branch pipe 30, whilst the surfaces nearest the end edges 33 of the diffuser vane are essentially parallel to the flow direction 29 of the intake air, which reduces the swirling produced as the intake air passes these edges 33. This is also the case at the pointed end of the insertion section. _
- the fact that the insertion section is curved and completely open on the downstream side means that the EGR gas can be mixed into the intake air over the entire length of the insertion section, that is to say along the end edges 33. At the same time the part of the EGR flow that follows the inside of the insertion section can flow unimpeded along this surface, imparting to it a direction of flow which coincides with the flow direction 29 of the intake air. Due to its kinetic energy, a proportion of the EGR gas can thereby travel far into the mixer arrangement 27 before being mixed up with the intake air.
- the arrangement described above therefore achieves an effective dispersal of the EGR gas in the intake air, which is advantageous in reducing environmentally harmful emissions.
- a further advantage with the design of the mixer arrangement according to the invention is that the EGR gas flow is simply directed away from the wall 28a opposite the branch pipe 30, so that rebounding of the gas flow is avoided, so as to minimize the pressure fall and to prevent soot particles in the EGR flow reaching said wall section.
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/SE2005/001798 WO2007064254A1 (en) | 2005-11-29 | 2005-11-29 | Exhaust gas recirculation mixer for a turbo-charged internal combustion engine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1957783A1 true EP1957783A1 (en) | 2008-08-20 |
EP1957783A4 EP1957783A4 (en) | 2011-10-12 |
EP1957783B1 EP1957783B1 (en) | 2016-07-06 |
Family
ID=38092490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05813493.3A Active EP1957783B1 (en) | 2005-11-29 | 2005-11-29 | Exhaust gas recirculation mixer for a turbo-charged internal combustion engine |
Country Status (6)
Country | Link |
---|---|
US (1) | US7908859B2 (en) |
EP (1) | EP1957783B1 (en) |
JP (1) | JP5089603B2 (en) |
CN (1) | CN101321944B (en) |
BR (1) | BRPI0520708A2 (en) |
WO (1) | WO2007064254A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101970830A (en) * | 2008-01-24 | 2011-02-09 | 马克卡车公司 | Exhaust gas recirculation mixer device |
US7971579B2 (en) * | 2008-02-26 | 2011-07-05 | Cummins Intellectual Properties, Inc. | Air-exhaust mixing apparatus |
JP2011522989A (en) | 2008-06-12 | 2011-08-04 | パーキンズ エンジンズ カンパニー リミテッド | Exhaust gas mixing system |
US7863325B2 (en) | 2008-12-11 | 2011-01-04 | Axcentua Pharmaceuticals Ab | Crystalline genistein sodium salt dihydrate |
JP5306039B2 (en) * | 2009-04-28 | 2013-10-02 | 日野自動車株式会社 | EGR gas mixing device |
FR2958336B1 (en) * | 2010-03-31 | 2013-03-15 | Valeo Systemes Thermiques | MANIFOLD FOR GAS DISTRIBUTION IN THE CYLINDER HEAD OF AN ENGINE WITH RECIRCULATED EXHAUST GAS MIXTURE WITH COUNTER-CURRENT ADMISSION GASES. |
CN102128110A (en) * | 2011-01-21 | 2011-07-20 | 潍柴动力股份有限公司 | Air inlet device and diesel engine |
CN102230429A (en) * | 2011-04-29 | 2011-11-02 | 奇瑞汽车股份有限公司 | EGR (Exhaust Gas Recirculation) gas mixer |
US20140150759A1 (en) * | 2012-12-04 | 2014-06-05 | GM Global Technology Operations LLC | Engine Including External EGR System |
US9322364B2 (en) | 2013-07-22 | 2016-04-26 | GM Global Technology Operations LLC | Engine inlet for EGR-air flow distribution |
US9926891B2 (en) | 2015-11-18 | 2018-03-27 | General Electric Company | System and method of exhaust gas recirculation |
US10815940B2 (en) * | 2018-07-18 | 2020-10-27 | Deere & Company | Intake manifold with integrated mixer |
US11319909B1 (en) * | 2020-12-08 | 2022-05-03 | Ford Global Technologies, Llc | Exhaust gas recirculation mixer |
Citations (6)
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US1791949A (en) * | 1924-04-02 | 1931-02-10 | Zenith Carburateur Soc Du | Carburetor |
GB425773A (en) * | 1933-10-06 | 1935-03-21 | Leslie Valdemar Petersen | Improvements in and relating to carburetters |
DE840479C (en) * | 1950-10-03 | 1952-06-03 | Hirth Landmaschinen Und Motore | Device for supplying engine exhaust gases to the fuel-air mixture |
FR2238055A1 (en) * | 1973-07-18 | 1975-02-14 | Willaume Rolland | I.C. engine pollution reduction system - injects variable proportion of exhaust gas into fresh air intake |
DE4319380A1 (en) * | 1992-06-12 | 1993-12-16 | Avl Verbrennungskraft Messtech | IC engine with turbo charger - has nozzle diffusor unit in charging air line, with a constriction in diffusor |
EP1010889A2 (en) * | 1998-12-18 | 2000-06-21 | Detroit Diesel Corporation | Engine air intake manifold having built-in intercooler |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2084142A (en) * | 1935-04-12 | 1937-06-15 | Trico Products Corp | Suction operated accessory system |
JPS5828583A (en) * | 1981-07-31 | 1983-02-19 | Toyota Motor Corp | Exhaust gas circulating device |
JP2548036Y2 (en) | 1991-01-25 | 1997-09-17 | アイシン精機株式会社 | Exhaust gas recirculation device |
FR2719870B1 (en) | 1994-05-11 | 1996-07-05 | Renault | Exhaust gas recirculation device for an internal combustion engine. |
US5533487A (en) * | 1994-06-23 | 1996-07-09 | Navistar International Transportation Corp. | Dynamic enhancement of EGR flow in an internal combustion engine |
JP3937612B2 (en) * | 1998-11-24 | 2007-06-27 | いすゞ自動車株式会社 | Multi-cylinder engine EGR device |
DE19933030A1 (en) * | 1999-07-15 | 2001-01-18 | Mann & Hummel Filter | Fluid introduction for a hot fluid in a cavity structure |
SE513916C2 (en) * | 1999-08-23 | 2000-11-27 | Motortestct Mtc Ab | Device for transferring exhaust gases from a supercharged combustion engine exhaust collector to its inlet line |
JP2001099013A (en) * | 1999-09-30 | 2001-04-10 | Nissan Diesel Motor Co Ltd | Exhaust gas recirculating device for internal combustion engine |
DE10019409C5 (en) * | 2000-04-19 | 2004-04-29 | Daimlerchrysler Ag | Exhaust gas recirculation device for internal combustion engines |
US6427671B1 (en) * | 2000-07-17 | 2002-08-06 | Caterpillar Inc. | Exhaust gas recirculation mixer apparatus and method |
SE522310C2 (en) | 2001-03-02 | 2004-02-03 | Volvo Lastvagnar Ab | Apparatus and method for supplying recycled exhaust gases |
DE10202612A1 (en) | 2002-01-24 | 2003-07-31 | Pierburg Gmbh | Exhaust gas feedback device for air induction pipe section has exhaust return valve housing in one piece with valve outlet pipe, exhaust return device mounted with induction pipe section |
JP4526395B2 (en) * | 2004-02-25 | 2010-08-18 | 臼井国際産業株式会社 | Internal combustion engine supercharging system |
US6959700B2 (en) * | 2004-03-18 | 2005-11-01 | International Engine Intellectual Property Company, Llc | Flow deflector for a pipe |
DE102005020484A1 (en) * | 2005-04-29 | 2006-11-02 | Mahle International Gmbh | Exhaust gas recirculation device for internal combustion engine, has exhaust gas recirculation valve for controlling exhaust gas recirculation line and comprising actuating device for axially adjusting sleeve relative to fresh-air duct |
DE102006009153A1 (en) * | 2006-02-24 | 2007-08-30 | Mahle International Gmbh | Exhaust gas recirculation device |
US7654078B2 (en) * | 2006-05-08 | 2010-02-02 | Honeywell International, Inc. | Exhaust gas particle collector |
-
2005
- 2005-11-29 US US12/093,061 patent/US7908859B2/en active Active
- 2005-11-29 EP EP05813493.3A patent/EP1957783B1/en active Active
- 2005-11-29 JP JP2008542275A patent/JP5089603B2/en active Active
- 2005-11-29 WO PCT/SE2005/001798 patent/WO2007064254A1/en active Application Filing
- 2005-11-29 BR BRPI0520708-8A patent/BRPI0520708A2/en not_active Application Discontinuation
- 2005-11-29 CN CN2005800521898A patent/CN101321944B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1791949A (en) * | 1924-04-02 | 1931-02-10 | Zenith Carburateur Soc Du | Carburetor |
GB425773A (en) * | 1933-10-06 | 1935-03-21 | Leslie Valdemar Petersen | Improvements in and relating to carburetters |
DE840479C (en) * | 1950-10-03 | 1952-06-03 | Hirth Landmaschinen Und Motore | Device for supplying engine exhaust gases to the fuel-air mixture |
FR2238055A1 (en) * | 1973-07-18 | 1975-02-14 | Willaume Rolland | I.C. engine pollution reduction system - injects variable proportion of exhaust gas into fresh air intake |
DE4319380A1 (en) * | 1992-06-12 | 1993-12-16 | Avl Verbrennungskraft Messtech | IC engine with turbo charger - has nozzle diffusor unit in charging air line, with a constriction in diffusor |
EP1010889A2 (en) * | 1998-12-18 | 2000-06-21 | Detroit Diesel Corporation | Engine air intake manifold having built-in intercooler |
Non-Patent Citations (1)
Title |
---|
See also references of WO2007064254A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP5089603B2 (en) | 2012-12-05 |
WO2007064254A1 (en) | 2007-06-07 |
US20080264060A1 (en) | 2008-10-30 |
EP1957783A4 (en) | 2011-10-12 |
EP1957783B1 (en) | 2016-07-06 |
BRPI0520708A2 (en) | 2009-05-19 |
US7908859B2 (en) | 2011-03-22 |
CN101321944B (en) | 2011-04-27 |
CN101321944A (en) | 2008-12-10 |
JP2009517581A (en) | 2009-04-30 |
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